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Note 18 - Quarterly Financial Information (amounts in thousands, except per share data) (Detail) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2012
Dec. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Goodwill, Impairment Loss (in Dollars)   $ 67,000,000 $ 410,000 $ 67,000,000  
Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest (in Dollars)   41,800,000 18,000,000    
Income (Loss) from Extraordinary Items, Net of Tax, Per Diluted Share $ 4,400,000 $ 2.55      
Gross Profit (in Dollars)   5,900,000 47,472,000 39,837,000 62,705,000
Net Income (Loss) Attributable to Parent (in Dollars)   $ 4,200,000 $ (297,000) $ (35,900,000) $ 19,087,000
Earnings Per Share, Diluted $ 0.27 $ 0.26 $ (0.26) $ (2.24) $ 1.13